Vízügyi Közlemények, 1994 (76. évfolyam)
4. füzet - Pados I.: Negyven éve üzemel a tiszalöki-vízlépcső
364 Pados Imre IRODALOM Botár 1.-Károlyi Zs.: A Tisza szabályozása (I-П. rész). Vízügyi Történeti Füzetek (3-4.), Budapest, 1971. Csorna ].: A Tisza jégjelenségének előrejelzése Vízügyi Közlemények, 1968/3. Csorna J.-Szilágyi J.-Zborai K.: A tiszalöki duzzasztott tér víz-, hordalék- és jégelvonulási viszonyai. Vízügyi Közlemények, 1967/2. Dávid L.: A tiszalöki öntözőrendszer üzeme. Vízügyi Közleményekl965/2. Heniády L.-Starosolszky Ö. : A Tiszalőki-vízlépcső helyszíni ellenőrző vizsgálatai. Vízügyi Közlemények, 1964/3. Hírig D.: A magyar vízszabályozás története. Budapest, 1973. Lászlóffy W.: A Tisza, vízi munkálatok és vízgazdálkodás a Tisza vízrendszerében. Akadémiai Kiadó, Budapest, 1982. Pálfai /.: Az 1992. évi aszály Magyarországon. Vízügyi Közlemények, LXXV. évfolyam, 3. füzet, 1993. Országos Vízügyi Hivatal (ÓVH): Országos Vízgazdálkodási Keretterv-vázlat. Budapest 1954. OVH: Mérlegen a Tisza-szabályozása. Budapest, 1992. VITUKI: A tiszalöki duzzasztott tér mederváltozása. Összefoglaló témajelentés (kézirat). Témafelelős: Csoma J.-Dohnalik J. VITUKI, Budapest, 1961. * * * Forty years of operation of the Tiszalök River Barrage by Dr. Imre PADOS, C.E. Before the regulation of the River Tisza marshes, wetlands and annually repeated inundations had covered a substantial part of the Hungarian plains Alföld (Figure 1.). In the 19th Century, upon the initiation of Count István Széchenyi and on the basis of the overall plans of Pál Vásárhelyi the large scale Hood control and drainage works turned this landscape into inhabitable territory, establishing the preconditions for economic development. Nevertheless these large river regulation works were not associated or followed by appropriate water utilization (irrigation) programmes. After a long series of dry years irrigation started in the plains Alföld only after the catastrophic droughts of 1935-36 along with the preparation of plans for the Tiszalök River Barrage. The Tiszalök irrigation scheme consists of the river barrage, the main canals Keleti (eastern) and Nyugati (western) and the irrigation systems forking off from these canals (Figure 2.). Construction of the river dam commenced, however, after the second World War only. The river barrage was constructed in a river-bend cutoff (Figure 3.) and consists of three interconnected parts (Figure 4.): the dam, the navigation lock and the hydropower station (Figure 3.). The river dam (Figure 6.) has three openings of 37 m width each and facilitates the gravitational supply of 300-450 million m 3 water annually into the irrigation system. The hydropower station (Figure 5.) houses three Kaplan turbines with the annual average power output of 55 million Kwh. Data of power production in 1993 are summarized in Table I. Since the time of commissioning the river barrage in 1954 it has been subject to regular site survey and monitoring, together with the upstream river section. The largest problems were associated with drifting ice. The largest ice jam (Figure 8.) was created in the early winter of 1985. The total quantity of ice in the ice-piles and ice-jams was estimated as 3-5 million m 3. During its forty years of operation the Tiszalök River Barrage had a favourable impact on the socio- economic conditions of large part of the country. A commemorative tablet, paying tribute to the high number of famous and unknown specialists who worked in the planning and construction of the works, was inaugurated on the 8th of July 1994 (Figure 9.).
